Find the missing number:-

(1)4:5=32:_

The missing number is 40.

Explanation:

The ratio 4:5 can be expressed as a fraction 4/5.

We can set up a proportion using this fraction:

4/5 = 32/x

To solve for x, we can cross-multiply:

4x = 5 * 32

4x = 160

x = 40

Therefore, the missing number is 40.

To find the missing number in the given proportion, we can solve it using cross multiplication.

The proportion given is: 4:5 = 32:_

Cross multiplying, we get:
4 * _ = 5 * 32

Simplifying the equation, we have:
4_ = 160

Dividing both sides by 4, we find:
_ = 40

Therefore, the missing number in the proportion is 40.